What is a common application for spur gears?

Spur gears are primarily used for power transmission due to their simple design and efficiency in transferring torque between parallel shafts. These gears have straight teeth that are aligned parallel to the axis of rotation, allowing for smooth interaction between the gear teeth as they mesh. This design minimizes sliding friction and maximizes the transfer of energy, making spur gears highly effective for applications that require reliable and straightforward power transmission.

In contrast, while spur gears can be used in high-speed applications, their performance is optimal at lower speeds where the impact forces between teeth are reduced. Additionally, they are not typically used for inclined shaft operations as their tooth design does not accommodate the axial loading that occurs in such orientations. Low-speed operations may be one possible application, but the primary and most common application remains focused on the role they play in transferring power effectively between aligned shafts.